<template>
  <el-container class="home-container">
    <!-- 头部区域 -->
    <el-header>
      <div>
        <img src="@/assets/heima.png"
             alt="">
        <span>电商后台管理系统</span>
      </div>
      <el-button @click="quit"
                 type="info">退出</el-button>
    </el-header>
    <!-- 主体内容 -->
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCollapse ? '64px' : '200px'">
        <el-menu class="el-menu-vertical-demo"
                 background-color="#545c64"
                 text-color="#fff"
                 active-text-color="#2f80f7"
                 unique-opened
                 :collapse="isCollapse"
                 :collapse-transition="false"
                 router
                 :default-active="$route.path">
          <!-- 侧边栏折叠 -->
          <div class="toggle-button"
               @click="isCollapse=!isCollapse">|||</div>
          <!-- 下拉表单 -->
          <el-submenu :index="item.id + ''"
                      v-for="item in menulist"
                      :key="item.id"
                      unique-opened>
            <template slot="title">
              <i :class="iconsObj[item.id]"></i>
              <span>{{item.authName}}</span>
            </template>
            <el-menu-item :index="'/' + subItem.path "
                          v-for="subItem in item.children"
                          :key="subItem.id">
              <i class="el-icon-menu"></i>
              {{subItem.authName}}
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 主内容 -->
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>

</template>

<script>
export default {
  data () {
    return {
      menulist: [],
      iconsObj: {
        125: 'iconfont icon-user',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'
      },
      isCollapse: false
    }
  },
  created () {
    this.getMenuList()
  },
  methods: {
    // 退出登录，删除token
    quit () {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenuList () {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.menulist = res.data
    }
  }
}
</script>

<style lang="less" scoped>
.home-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}

.el-aside {
  background-color: #333744;
  .el-menu {
    border-right: none;
  }
}

.el-main {
  background-color: #eaedf1;
}

.iconfont {
  margin-right: 10px;
}

.toggle-button {
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
